There is a pretty scary bug when using the Chrome plugin with SwedBank online banking.
If you scan the OCR reference only and send to the browser, the plugin will also change the recipient of the payment, to the first one of your stored recipients. HOWEVER this is not visible in the form until you post. Fortunately the first recipient in my list does not accept OCR payments, so when posting I get an error message and opportunity to change the recipient again. Others may not be so lucky...